Thank you for your questions!
When a tooth is missing it leaves a space or gap in the mouth. Over time, adjacent and/or opposing teeth can move into this space which can affect your smile. If you have noticed that the space has become smaller, then it’s likely the teeth next to the gap have drifted into this space.
If you are missing multiple teeth, the muscles, skin and soft tissues will lose support and begin to sag which can make you appear older. Weight loss can also contribute towards this as it’s unlikely a single tooth will cause much of a difference.
It’s best to consult with a dentist for options to improve your smile. They may be able to offer you braces, crowns, veneers or even anti wrinkle injections/lip enhancements depending on your case.
I hope this helps!
